There is something all too wonderful about the grace of GOd, and this passage conveys the power of this grace so well.
The grace of God brings -- now and evermore -- grace to all men.
The grace of God is flowing toward everyone on the planet. It's up to everyone of us to believe it.
"Jesus answered and said unto them, This is the work of God, that ye believe on him whom he hath sent." (John 6: 29)
Grace is always teaching us -- to deny ungodliness, to reject it, to want no part with it.
The answer is not more "No", but a lot more of the grace of God - that He gives us all things, and freely:
"1What shall we then say to these things? If God be for us, who can be against us? 32He that spared not his own Son, but delivered him up for us all, how shall he not with him also freely give us all things? " (Romans 8: 31-32)
The grace of God teaches us to reject sin, because what He gives us, what Jesus is for us, is far better!